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» Immunity for Closed Sets
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CHI
2007
ACM
16 years 7 months ago
"Look!": using the gaze direction of embodied agents
This paper describes the results of three studies investigating an embodied agent that supports its interaction with the user by gazing at corresponding objects within its close e...
Johann Schrammel, Arjan Geven, Reinhard Sefelin, M...
CHI
2007
ACM
16 years 7 months ago
Biases in human estimation of interruptibility: effects and implications for practice
People have developed a variety of conventions for negotiating face-to-face interruptions. The physical distribution of teams, however, together with the use of computer-mediated ...
Daniel Avrahami, James Fogarty, Scott E. Hudson
HPCA
2007
IEEE
16 years 7 months ago
Exploiting Postdominance for Speculative Parallelization
Task-selection policies are critical to the performance of any architecture that uses speculation to extract parallel tasks from a sequential thread. This paper demonstrates that ...
Mayank Agarwal, Kshitiz Malik, Kevin M. Woley, Sam...
OSDI
2008
ACM
16 years 6 months ago
Improving MapReduce Performance in Heterogeneous Environments
MapReduce is emerging as an important programming model for large-scale data-parallel applications such as web indexing, data mining, and scientific simulation. Hadoop is an open-...
Matei Zaharia, Andy Konwinski, Anthony D. Joseph, ...
PODS
2006
ACM
122views Database» more  PODS 2006»
16 years 6 months ago
Space- and time-efficient deterministic algorithms for biased quantiles over data streams
Skew is prevalent in data streams, and should be taken into account by algorithms that analyze the data. The problem of finding "biased quantiles"-- that is, approximate...
Graham Cormode, Flip Korn, S. Muthukrishnan, Dives...